No kidding. I just about crapped in my seat when I saw it at the theater. It just looked too wrong to be lovable.

The elongated alien that came lurching out of the mothership in Close Encounters freaked the hell out of me. The musical score at that moment really added to the effect.
Poltergeist. Thoughts of that flick would terrify me if I happened to wake up in the middle of the night. Curse that clown. I spent many weeks getting over that mess.